Adjustable and reversible measuring and gaining machine.



G. DRENNER. ADJUSTABLE AND REVERSIBLE MEASURING AND GAINING MACHINE.

' APPLICATION FILED FEB. 3, 1910. 1 ,035,328. Patented Aug. 13, 1912.

- 2 SHEETSSHEET l.

Geb rgefl attain;

G. DRBNNER. ADJUSTABLE AND REVERSIBLE MEASURING AND GAINING MACHINE. I

APPLICATION FILED FEB.3, 1910. 1 ,O35,328.

Patented Aug. 13, 1912.

2 BHEETSBHEET 2.

Georgeflremzel COLUMBIA PLANOORAPH C0" WASHINGTON- D- C- 4 GEORGEDRENNER, F POLO, ILLINOIS.

ADJUSTABLE AND REVERSIBLE MEASURING AND GAINING MACHINE.

Specification of Letters Patent.

Patented'Alw'. 13, 1912.

Application filed February 3, 1910. Serial No. 541,936.

I To all whom it may concern:

Be it known that I, Gnonon DnnNNnn, a citizen of the United States of.Ai'nerica, residing at P010, in the county of Ogle and State ofIllinois, have invented an Adjustable and Reversible Measuring andGaining Machine, of which the following is a full, clear, and exactdescription.

This invention an apparatus for use in making window or door jambs, andthe object of the invention is to provide means whereby the transversegrooves near the ends of the amb may be accurately located and rapidlyproduced.

The invention seeks to provide a device by which a workman may producethe gains or grooves in any width or length of a window or door jambwithout previously measuring or laying off the jamb.

A. further object of the invention is to provide means for cutting thegroove or gain in a amb at a right angle to the longitudinal edges ofthe jamb or at any desired inclination thereto, and to provide for theformation of the right or left jamb with equal facility.

A further object of the invention is to provide a device in which jainbsof any desired thickness may be easily made and uniformity in thelocation of the gains attained.

All these objects, and such other incidental objects as will appear asthe nature of the invention is more fully understood, are attained inthe use of the apparatus illustrated in the accompanying drawings, andthe invention consists in certain novel features thereof which will behereinafter fully described and then more specifically pointed out inthe appended claims.

In the drawings,-l igure 1 is a plan view partly broken away, of anapparatus embodying my invention. Fig. 2 is an elevation of theapparatus with a part shown in vertical section, as viewed from theright hand end of Fig. 1. Fig. 3 is a transverse vertical sectionthrough one of the clamping guides or gages, the device being reversedfrom the position occupied in Fig. 2, that is, looking toward the rightof Fig. Fig. 4 is an enlarged bottom plan view of one of the adjustableclamps. Fig. 5 is a detail section on the line 55 of Fig. 2. Fig. 6 is adetail section on the line 66 of Fig.2. Fig. 7 is a plan view of thelower member of the adjustable clamp.

In carrying out my invention, I provide a support consisting of endframes 1 adapted to be rigidly secured to a work bench or other fixedsupport and provided with recesses at their upper corners in which aresecured the ends of angle bars 2 which extend between the two end framesand serve to rigidly connect the same. The angle bars 2 are in parallelspaced relation and form the front and back of the supporting frame andalso serve as guide rails to which adjustable clamping gages aresecured. These gages, which may be practically identical one with theother, each comprises a base plate 3 of substantially T-shape and isprovided on the face constituting its under side, when the parts are inoperative position, witlrdepending lips or hook-shaped lugs l adapted toengage the inner edges of the front and rear rails 2, as shown clearlyin Figs. 3 and 1, and near its rear end the base plate is provided witha lug or stop 5 adapted to bear against the back of the rear rail 2, aswill be readily understood. At its rear extremity the base plate isprovided with an opening or passage 6, the purpose of which willpresently appear, and the front end of the base plate is formed into alaterally broadened head 9 having a curved front edge 7 in which areformed a plurality of notches 8, the opening 6 being the center of theare described by the curved edge 7.

On the underside and intermediate of the head 9 of the base plate is adepending lug or bracket 10 in which is mounted a thumb screw 11 adaptedto bind upon the front face of the front rail 2 and thereby secure thesaid base plate at any point along the supporting frame, thecorresponding lugs 4t engaging the rear edge of the front rail 2,wherefore the single screw 11 serves to very firmly hold the base plateand parts carried thereby in adjusted positions. Resting upon the baseplate 3 is a clamping bar 12 constituting the lower or end member of aclamp, and this bar has on its upper surface near its rear end a pin orspur 13. The bar 12 is secured to the base plate 3 by a pivot bolt orscrew 14 passing through the opening 6 in the base plate and engagingthe clamping bar 12 immediately under the said spur 13. On the underside of the bar 12, near the front end thereof, I provide a pair oflongitudinal ribs 15 between which a latch 16 is pivotally mounted. Thislatch is provided at its rear end with a tooth 17 adapted to engage oneof the notches 8 in I the head 9 of the base plate, and the front end ofthe latch is formed into a finger piece 18 by which itmay beconveniently operated. 'A spring 19 is' disposed between the clampingbar 12 and the latch 16 in advance of the pivotal support of the latchin order to hold the rear end of the latchnormally in engagement with anotch 8. On one side edge of the 'bar- 12, at the rear end of the same,I provide a, guide 20; having ribs 21,011 its outer face, and a bolt 22is mounted in this guide near the upper end O t a t Project thr ughlongitudinal; slot 23 in an arm 24; secured to; an upperclamping bar 25,a thumb nut 26, being monnted on the bolt 22 and adapted to, b turnedhomev against the arm to. secure the same at any desired position ofadjust: ment so that the. space between the clamp.- ing bars 12' and 25will accommodate jambs of any desired thickness. The clamping bar 25 haspractically the same dimensionsas the clamping bar 12;, but the upperbar is preferably of wood while the lower bar is preferably of metal.This construction is, strong and rigid and; will permit. the door jambto. be securely clamped in posi: o n h appara us, Whi a the same time epper bar wi n t injnre that face of the ja nb which is exposedin use andwill not break or otherwise injure the. cutter when the same ismanipulated by a careless or inexperienced workman. The front end of theupper clampingbaris held to, the IOWer bar, to. secure a] jamh betweenthem, by means of a holding device comprising a bolt or pin 27 securedone end in a bracket 2S, secured; upon the upper c-l ang ps ing bar andprojectinglateralily' from one long edge thereof, the lower end of thepin passing'through a lug or ear projecting from the like edge of thelower clam-pingbar directly under the bracket 28, as shown clearly inFigs 2- and 5. A spring 302 sur rounds the bolt; or pin 27 between thetwo. clamping arms and tends, to move the upper clamping bar away fromthe lower champingbar, and a set screw 31 is mounted in the lug or ear29 to bear against the bolt or pin 27 to hold the same in adjustedpositions.

A clamp consisting of the base plate or carrier 3,]lower clamping bar12, and upper clamping bar 25 and their connections, as above described,is provided for each, end of the j'amb and one of the clamps, designated 32 in Fig. 1;, is intended to remain fixed, relative to thesupporting frame, after having been once adjusted and securedthereto,while the other clamp, designated 38' in Fig-. 1, is intended; to beadjusted from time to time along the frame to accommo- :QOllStlLlCtlOIl.and compact in the arrange e, j mbs of d f ren l ngths. To insureaccuracy in the adjustment of the clamp,

the front rail 2 of the supporting frame is provided on its upper facewith a series of grad'uations 34 in accordance with standard frames. orj ainbs to accurately locate the adjustable clamp according to thelength of j ainb tov be made. Two scales are provided,

the front scale being graduated for singlelight Windows, and the rearscale belng graduated for double-light WlDdOWS. A

'jalnb 35 is inserted under the. upper clamp:

ing bars with one edge, to constitute the outeredge :tor use restingagainst the spurs. or stops 13 of the lower clamping bars. and one endthe proper distance from the re. pective c amp, this distance beingascere tained by measurement, or by a suitable in: dication on themachine. The. upper clampng bars. are then brought down firnah up theupper surface of the jamb. and: secured by tightening the thumb. screws31. The clamp, appearing at the left in Fig. l and designated 32', isordinarily set at" a right angle to the outer edge of" the j amb, byengaging the latch 16. in the central notch 8 and: the. left handstraight edge of the. upper bar 25 of this clamp, as viewed in 1 willserve as. a guide or gage against which the dado cutter may besupported; when moved across the jan b so. as to cut a groove or gain 36therein. The proper position for the clamp 32 is indicated by the. lineson the graduated bar 2. The clamp 33. is adjusted to the desired angleby engaging the latch 16 thereof in the proper notch 8* of the baseplate of the clamp, and the left hand; straight edge of the upper bar ofthis clamp likewise serves as a guide for the cutter while producing agroove The j m s ne ide ofthe. windowshaving' been grooved or gained inthis manner, the right hand clamp is set at a right angle, while theleft hand Clampis at the same inclination formerlygiven the right handclamp. The jiambs for the opposite sides of the. windowv may then beproduced by moving the cutter across the jamb while resting: the sameagainst the. edges of the upper clamping barsv in. the manner previouslydescribed.

YVhen a jamb has been finished, the set screws. 3-1 of; the clamps arereleased and the springs 30 at once throw the front ends of the upperclamp ng bars from the iambs so that the latter be easily removed. The

upper clamping barmay be adjusted to and from the lower clamping bar soas to. accommodate jambs of different thicknesses by loosening. thethumb nut 26, then raising or lowering the upper her, and then turningthe thumb. nut home aghinst the dependent arm 24: so as to secure theupper clamping arm in its. adjusted position.

My device is exceedingly simple in its ment of its parts so; that itwill not easily get out of order and may be quickly adjusted to therequirements of any particular case.

l Vindow or door jambs of any standard length or thickness may berapidly finished by the use of the apparatus, and its many advantagesare thought to be obvious without detailed mention of the same.

lVhile I have described the principle of operation of the invention,together with the apparatus which I now consider to be the bestembodiment thereof, I desire to have it understood that the apparatusshown is merely illustrative, and that such changes may be made whendesired as are within the scope of the claims appended hereto.

Having thus described my invention, what I claim is 1. An apparatus forthe purpose described comprising a suitable frame, and a pair of clampsmounted thereon, each clamp comprising a base plate fitted to thesupporting frame, a clamping bar pivoted near one end to the base plateto be moved laterally with relation thereto, another clamping baradjustably connected to the first named clamping bar and having one edgeformed .into a tool guide, and means on the first named clamping bar toengage the base plate and hold the clamp in adjusted positions.

2. In an apparatus for the purpose set forth, the combination of asupporting frame, a base plate fitted to the supporting frame, aclamping bar mounted on the base plate, another clamping bar connectedat one end to the corresponding end of the other clamping bar, a boltextending from the second named clamping bar, an ear on the first namedclamping bar receiving said bolt, a spring surrounding the said bolt between the bars, and a set screw carried by the first named bar andadapted to bear against said bolt.

3. The combination of a supporting frame, a base plate fitted to andadjustable along said frame and having a front edge provided with aplurality of notches, a clamping bar pi oted upon the base plate at therear end of the same, a catch mounted on said clamping bar and adaptedto releasably engage one of said notches to effect an ad justment of thebar relative to the plate, and an upper clamping bar connected with thepivoted clamping bar to bind a jamb thereto.

4. In an apparatus for the purpose described, a supporting frame, a pairof base plates mounted on the frame for independent adjustment along theframe and with respect one to the other, and a pair of coacting clampingbars mounted on each base plate and adapted to receive and secure a jambbetween them, said bars being provided with means imparting to one ofthe bars a normal tendency to move away from the other bar, one of saidbars being pivotally connected to the base plate adjacent one end of thepair of bars for adjustment in a plane substantially parallel with thebase plate.

5. The combination of a supporting frame, a base plate fitted theretoand adjustable longitudinally thereof, a clamping bar pivotally mountedon the base plate and provided with a guide on one side at its rear end,an upper clamping bar provided at its rear end with a depending armfitting in the said guide and formed on the side remote from thedepending arm to direct a tool, means for adjnstably securing said armto the guide, means for locking the front ends of the clan'iping barstogether, means for locking the clamping bars in adjusted relation tothe base plate, and means for locking the base plate in adjustablerelation to the frame.

6. The combination of a support-ingf 'ame, a base plate fitted to andadjustable along said frame and having an areuate front edge providedwith a plurality of notches, a clamping bar pivoted upon the base plateat the rear end of the same, a latch pivoted on the under side of saidclamping bar and adapted to engage one of said notches, a spring betweenthe base plate and the latch in advance of the pivot, and an upperclamping bar connected with the pivoted clamping bar to bind a jambthereto.

7. The combination of a supporting frame comprising longitudinallyspaced angle bars, a base plate resting on said bars and provided on itsunder side with lugs adapted to engage under the inner edges of thebars, a bracket depending from the-base plate near its front end, athumb screw mounted on said bracket and bearing against the front bar,and clamping bars carried by said base plate and adapted to hold a jamb.

8. The combination of a supporting frame comprising longitudinallyspaced rails, a base plate resting on said rails and provided with lugsadapted to engage the rails, a bracket mounted on the base plate nearone end, a thumb screw mounted on said bracket and bearing against oneof the rails, the base plate having an arcuate front provided with aplurality of notches, a clamping bar pivoted upon the base plate at oneend of the same, a catch mounted in the other end of said clamping barand adapted to releasably engage one of said notches to effect anadjustment of the bar relative to the plate, and an upper clamping barconnected with the pivoted clamping bar to bind a j amb thereto.

9. In an apparatus for the purpose described, an elongated supportingframe adapted to beattached to a bench, and clamps each comprising acarrier mounted on and adjustable along said frame in the direction ofthe length thereof, and two. bars connected together at one end and oneadjustable toward and from the other at the other end, the connectedbars being pivotally mounted on the respective carriers to move abouttheir pivots in a plane parallel with the plane of adjustment of thecarriers along the supporting frame.

10. In an apparatus for the purpose described, an elongated supportingframe, and clamps each comprising a carrier mounted on and adjustablealong said frame in the direction of the length thereof, and two barsconnected together at one end and one adjustable toward and from theother at the other end, the connected bars being pivotally mounted onthe respective carriers to move about their pivots in a plane parallelwith the plane of adjustment of the carriers along the supporting frame,each pair of connected bars being provided with a stop for materiallodged between the bars said stop being located substantially in thepivotal axis of the connected bars.

11. In an apparatus for the purpose described, an elongated supportingframe, and clamps each comprising a carrier mounted on and adjustablealong said frame in the direction of the length thereof, and two barsconnected together at one end and one adjustable toward and from theother at the other end, the connected bars being pivotally mounted onthe respective carriers to move about their pivots in a plane parallelwith the plane of adjustment of the carriers along the supporting frame,each pair of bars being provided with a stop for material lodged betweenthe bars, said stop being located substantially in the pivotal axis ofthe connected bars, and each pair of connected bars being provided witha latch in coactive relation to the respective carrier for holding theconnected bars in different positions of adjustment about their pivotalaxis.

12. In an apparatus for the purpose described, an elongated supportingframe having means for its attachment to a bench and clamps eachcomprising a carrier mounted on and adjustable along the frame in thedirection of the length of the latter and provided with means forsecuring the carriers in adjusted positions, and two bars one pivotallymounted on the carrier to move in a plane about its pivot substantiallyparallel with the plane of movement of the carrier along the frame, andthe other bar being connected at one end to the pivotend of the firstnamed bar and provided with means for its adjustment bodily toward andfrom the first named bar, and means for securing that end of the secondbar remote from its pivot to the first bar.

13. In an apparatus for the purpose described, an elongated supportingframe having means for its attachment to a bench, and clamps eachcomprising a carrier mounted on and adjustable along the frame in thedirection of the length of the latter and provided with means forsecuring the carriers in adjusted positions, and two bars,

one pivotally mounted on the carrier to move in a plane about its pivotsubstantially parallel with the plane of movement of the carrier alongthe frame, and the other bar being connected at each end to therespective ends of the first named bar and provided with means for itsadjustment bodily toward and from the first named bar, the connectingmeans between the two bars at the ends remote from the pivot end of thefirst named bar including means for holding the connecting means inadjusted positions and a spring normally tending to move the secondnamed bar away from the first named bar.

14. In an apparatus for the purpose described, an elongated supportingframe having means for its attachment to a bench, and clamps eachcomprising a carrier and provided with means for securing the carriersin adjusted positions, and two bars, one pivotallymounted on the carrierto move in a plane about its pivot substantially parallel with the planeof movement of the carrier along the frame and the other bar beingconnected at each end to the respective ends of the first named bar andprovided with means for its adjustment bodily toward and from the firstnamed bar, the connecting means between the two bars at the ends remotefrom the pivot end of the first named bar including means for holdingthe connecting means in adjusted positions, and a spring normallytending to move the second named bar away from the first named bar, thefirst named bar and the carrier being provided with coacting means forlocking the connected bars in different positions of adjustment aboutthe pivot of the first named bar.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

Dated at Polo, Illinois, this 10th day of January, A. D. 1910.

GEORGE BRENNER.

Witnesses:

HARRY TYPER, I. M. KIDDER.

Copies or this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

